A couple of rare Titanic items are up for auction:a ticket from the Turkish bath, a lunch menu, and a letter written six months after the disaster by Lady Duff Gordon’s secretary. The auction for these items is at Lion Heart Autographs in New York on 30 September. Bids are being accepted online.

Here is an article from National Geographic about the auction and its historic value:

A Look at the Titanic Artifacts Going to Auction This Week (29 Sep 2015, National Geographic)